How to calculate torsional frequency for 3D Model?


It depends on the type of mass distribution considered. Since by default lumped mass is considered for line model, rot X is not significant since the masses are lumped at nodal points.

So, by either considering, the off-diagonal masses or choosing the consistent mass( which accounts for mass distribution) the required result could be obtained.

Creation date: 10/27/2017 6:52 AM      Updated: 9/12/2023 12:53 PM
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